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Anit [1.1K]
3 years ago
14

-7x - 8y = -19 7x + 10y = 29

Mathematics
1 answer:
KatRina [158]3 years ago
6 0

Answer:

y=-4

Step-by-step explanation:

i don't explain things

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Which polygon has 11 sides​
Lady bird [3.3K]

Answer:

Hendecagon

Step-by-step explanation:

a hendecagon has 11 sides

7 0
2 years ago
Read 2 more answers
1. A coal train in Montana starts from rest and accelerates at 2.5 m/s2 for 15s.
liq [111]

Answer:

<h3>37.5m/s</h3>

Step-by-step explanation:

If a coal train in Montana starts from rest and accelerates at 2.5 m/s2 for 15s,let us calculate the final velocity of the train.

Use the equation of motion v = u + at where;

v is the final velocity

u is the initial velocity = 0m/s (starts from rest)

a is the acceleration = 2.5m/s²

t is the time = 15secs

Substituting the given parameters into the formula;

v = 0+(2.5)(15)

v = 0+37.5

v = 37.5m/s

Hence the final velocity of the train is 37.5m/s

8 0
3 years ago
Factorise fully<br>-12a - 16 <br><br>please do quick, first to answer marked brainiest!!​
Allushta [10]

Answer:

-4( 3a+4)

Step-by-step explanation:

-12a - 16

-4*3a -4*4

Factor out a -4

-4( 3a+4)

3 0
3 years ago
Help me please, asap i’m so confused :(
amm1812
What is the lalalallalalalaa
8 0
3 years ago
Ok I'm doing home work and need to show why 1/2 of 60 is not the same as 1/2 of 24 please help! It will give you 24 points.
Tems11 [23]
Simple,

1/2 of 60

re-write it as 0.5 of 60 aka 0.5*60

which is 0.5*60=30

Do the same with 1/2 of 24.

0.5 of 24

0.5*24=12.

Thus, it's not the same because they are different numbers and different number give you different answers.
7 0
4 years ago
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